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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/065/02/0291-0296

    • Keywords

       

      Liquid crystal displays; spatial light modulator; optical diffraction

    • Abstract

       

      We present a simple technique for the determination of pixel size and pitch of liquid crystal (LC) based spatial light modulator (SLM). The proposed method is based on optical diffraction from pixelated LC panel that has been modeled as a two-dimensional array of rectangular apertures. A novel yet simple, two-plane measurement technique is implemented to circumvent the difficulty in absolute distance measurement. Experimental results are presented for electrically addressed twisted nematic LC-SLM removed from the display projector.

    • Author Affiliations

       

      Ravinder Kumar Banyal1 B Raghavendra Prasad1

      1. Indian Institute of Astrophysics, Koramangala 2nd Block, Bangalore - 560 034, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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